239413720 has 256 divisors, whose sum is σ = 725034240. Its totient is φ = 69009408.

The previous prime is 239413697. The next prime is 239413721. The reversal of 239413720 is 27314932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239413721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3279604 + ... + 3279676.

It is an arithmetic number, because the mean of its divisors is an integer number (2832165).

Almost surely, 2^239413720 is an apocalyptic number.

239413720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239413720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362517120).

239413720 is an abundant number, since it is smaller than the sum of its proper divisors (485620520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

239413720 is a wasteful number, since it uses less digits than its factorization.

239413720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 239413720 is about 15472.9997091708. Note that the first 3 decimals coincide. The cubic root of 239413720 is about 620.9400585056.

The spelling of 239413720 in words is "two hundred thirty-nine million, four hundred thirteen thousand, seven hundred twenty".